How accurate are the roots?
Roots converge to double-precision accuracy for well-conditioned polynomials. The output rounds to eight decimals for readability.
Step-by-step walkthrough
Polynomial Solver Guide
Use this companion guide beside the interactive calculator to make sure you understand the “why” behind every click. Each section includes the classroom explanation, student-friendly language, and quick practice prompts.
Before you start
Collect the data points listed below and double-check their units. Keeping an organized “givens” list is one of the fastest ways to reduce math errors and impress exam graders.
- polynomial
- roots
- equation solver
Detailed procedure
Step 1
List coefficients from highest degree to constant term.
Step 2
Separate coefficients with commas or spaces.
Step 3
Review each root along with its complex form.
Teaching & troubleshooting tips
Does the order of coefficients matter?
Yes. Always supply coefficients starting with the highest power of x down to the constant term.